Using this code gives us both $20! However there is a minimum purchase required. Make sure to use the code while signing up & not after you've registered :) The Koho referral code rules read: Your friend must make a purchase of $20 or more within 30 days of getting the referral code You can only claim one reward per friend, and up to $1000 in your accounts lifetime. It may take up to 24 hours for the reward to appear in your account.